decay

width_calc[GeV]

width_obs[GeV]

rel. Δwidth

I_i

I_f

l = ΔI

G

x

m_X

G formula

${\pi }^{+}\to {\mu }^{+}{\nu }_{\mu }$

2.50122 × 10⁻¹⁷

2.528 × 10⁻¹⁷

0.000791139

1

2

3

1.47648 × 10⁻⁷

0.759476

96.3675

$G=g_0$

${\pi }^{+}\to e^{+}{\nu }_e$

3.24552 × 10⁻²¹

3.11 × 10⁻²¹

0.0186495

1

2

3

1.47648 × 10⁻⁷

0.00366125

107.988

$G=g_0$

$K^{+}\to {\mu }^{+}{\nu }_{\mu }$

3.3949 × 10⁻¹⁷

3.372 × 10⁻¹⁷

0.00266904

1

2

3

1.43527 × 10⁻⁷

0.214714

383.074

$G=g_1$

$K^{+}\to e^{+}{\nu }_e$

8.67067 × 10⁻²²

8.238 × 10⁻²²

0.0581452

1

2

3

1.43527 × 10⁻⁷

0.00103508

387.415

$G=g_1$

$K_S^0\to {\pi }^{+}{\pi }^{-}$

5.0423 × 10⁻¹⁵

5.084 × 10⁻¹⁵

0.00354052

1

2

3

9.28211 × 10⁻⁷

0.560961

146.47

$G=2g_1\alpha 443$

$K_S^0\to {\pi }^0{\pi }^0$ 0

2.5002 × 10⁻¹⁵

2.255 × 10⁻¹⁵

0.00798226

1

2

3

6.56344 × 10⁻⁷

0.542501

174.823

$G=2g_1\alpha 443/\sqrt{2}$

$K^{+}\to {\pi }^{+}{\pi }^0$

1.12741 × 10⁻¹⁷

1.112 × 10⁻¹⁷

0.00719424

1

2

3

4.41006 × 10⁻⁸

0.556123

667.317

$G=2g_1\alpha \sqrt{443}$

$K_L^0\to {\pi }^{+}{\pi }^{-}$

2.56934 × 10⁻²⁰

2.543 × 10⁻²⁰

0.0247739

1

2

3

2.09528 × 10⁻⁹

0.560961

3082.85

$G=2g_1\alpha$

$K_L^0\to {\pi }^0{\pi }^0$

1.27399 × 10⁻²⁰

1.119 × 10⁻²⁰

0.204647

1

2

3

1.48159 × 10⁻⁹

0.542501

3679.59

$G=2g_1\alpha /\sqrt{2}$